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Question 4

What is the function of digestive enzymes?

Answer

Enzymes are the organic compounds produced by the living cells to carry forward the biochemical reactions in and outside the cells of the organisms. Some chemical reactions occurs by the enzymes known as catalysis and the substances by which these chemical reactions occurs known as catalytic compounds. Enzymes are of two types- intracellular enzymes or Extracellular enzymes. Intracellular enzymes remain inside the cell also known as endoenzymes. Extracellular enzymes leaves the cells and functions outside the cell also known as exoenzymes. 

Extracellular enzymes contain digestive enzymes which help in the breaking down of the food. Digestive enzymes like- salivary amylase or ptyalin secreted by salivary gland in the oral cavity, pepsin (activated from pepsinogen by HCL), rennin (activated from prorenin by HCL), gastric lipase all three produced by the gastric glands in the stomach, pancreatic lipase, pancreatic amylase, DNase, RNase, trypsin (activated from trypsinogen by enterokinase), chymotrypsin (activated from chymotrypsinogen by trypsin) secreted from pancreas in the small intestine, lysozyme in tears, intestinal amylase, maltase, isomaltase, lactase, dipeptidase, intestinal lipase, nucleotidase, nucleosidase, enterokinase they are produced from the intestinal gland in the small intestine.

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